Articulated scraper blade system

ABSTRACT

An articulated scraper blade system mounted to a snow plow blade length installed in the front of a vehicle for snow scraping, which comprises a multitude of carbide sections moving independently when they strike an obstacle on a road surface.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] More paticularly, this invention relates to an articulatedscraper blade system made up of a multitude of carbide sections mountedto a snowplow blade length installed on the front of a vehicle beingused for the snow scraping, and whose each carbide section movesindependently when it strikes an obstacle on road surface.

[0003] 2. Description of the Related Art

[0004] A search of prior art records has unveiled the following patents:

[0005] 1. U.S. Pat. No. 2,282,298 issued in 1942 to Vogel;

[0006] 2. CA 2,242,278 issued in 1998 to Daniels;

[0007] 3. U.S. Pat. No. 5,865,997 issued in 1997 to Isaacs;

[0008] 4. U.S. Pat. No. 3,906,577 issued in 1973 to Brucher;

[0009] 5. FR 2,539,438 issued in 1984 to Kueper;

[0010] 6. U.S. Pat. No. 4,258,797 issued in 1978 to Mckenzie;

[0011] 7. WO 9,107,547 issued in 1989 to Turpeinen;

[0012] 8. WO 9, 005,218 issued in 1988 to Andersson;

[0013] 9. U.S. Pat. No. 5,813,150 issued in 1996 to Davis;

[0014] 10. DE 4,100,545 issued in 1991 to Nusser;

[0015] 11. DE 3,937,634 issued in 1991 to Schulz;

[0016] 12. U.S. Pat. No. 5,513,453 issued in 1994 to Norton;

[0017] 13. EP 0,846,808 issued in 1997 to Maier;

[0018] 14. U.S. Pat. No. 5,881,480 issued in 1996 to Fall;

[0019] 15. EP 0,279,338 issued in 1988 to Hallissy; and

[0020] 16. U.S. Pat. No. 5,241,763 issued in 1991 to Dynan;

[0021] The patents to Vogel and Kueper are probably the most relevant.

[0022] Accordingly, it is a principal object of the present invention toprovide a snowplow blade length with an articulated scraper blade systemmade up of a multitude of carbide sections for the snow scraping, andwhich each carbide section moves independently when it strikes anobstacle on road surface.

SUMMARY OF THE INVENTION

[0023] According to the present invention, there is described anarticulated scraper blade system made up of a multitude of carbidesections mounted to a snow plow blade length installed on the front of avehicle for the snow scraping, and which each carbide section movesindependently when it strikes an obstacle on road surface.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S)

[0024] The invention will be described more in detail herein belowrelating to the enclosed drawings in which some embodiments are shown:

[0025]FIG. 1 is a perspective view of an articulated scraper bladesystem made up of a multitude of carbide sections moving independently,which are mounted to a snowplow blade length installed on the front of avehicle;

[0026]FIG. 2a is a front view of the snowplow blade length showing thearticulated scraper blade system made up of a multitude of carbidesections moving independently which one carbide section is shown in araised position;

[0027]FIG. 2b is a front view of the snowplow blade showing thearticulated scraper blade system made up of a multitude of carbidesections moving independently which two carbide sections are shown in araised position;

[0028]FIG. 3a is a perspective rear view of a carbide section;

[0029]FIG. 3b is a perspective front view thereof;

[0030]FIG. 4a is a perspective rear view showing a carbide section in alowered position;

[0031]FIG. 4b is a perspective rear view showing a carbide section in araised position; and

[0032]FIG. 5 is an exploded view thereof.

NUMERICAL REFERENCES OF THE ILLUSTRATED ELEMENTS

[0033] Structural plate member (1)

[0034] Plate member (2)

[0035] Snow deflector (3)

[0036] Spring force (4)

[0037] Bolt (5)

[0038] Flat washer (6)

[0039] Iron wedge (7)

[0040] Bolt (8)

[0041] Slip gap (9)

[0042] Nut (10)

[0043] Threaded aperture (11)

[0044] Aperture (12)

[0045] Iron pin (13)

DETAILED DESCRIPTION OF THE INVENTION

[0046] Now referring to the accompanying drawings, and in particular toFIG. 1, there is shown in phantom lines a snowplow blade lengthinstalled on the front of a vehicle, and on which is mounted anarticulated scraper blade system (A) made up of a multitude of carbidesections for the snow scraping, and which each carbide section movesindependently when it strikes an obstacle on road surface.

[0047] As illustrated in FIG. 2a, there is shown a multitude of carbidesections mounted to a snowplow blade length moving independently, andwhich one carbide section is shown in a raised position.

[0048] As illustrated in FIG. 2b, there is shown a multitude of carbidesections mounted to a snowplow blade length moving independently, andwhich two carbide sections are shown in a raised position.

[0049] As illustrated in FIGS. 3a, 3 b, 4 a, 4 b and 5, there is shown acarbide section comprising a plate member (2) having spaced and alignedslip gaps (9) formed therein, wherein each slip gap (9) allows the platemember (2) to be raised automatically when it strikes an obstacle onroad surface, and lowered automatically by a spring force (4) for thesnow scraping.

[0050] The forward plate member (2) includes a snow deflector (3) formedto its lower portion so as to avoid the accumulation of residue andfreeze inside the mechanism.

[0051] The plate member (2) includes also an iron pin (13) receiving thespring force (4) on which is engaged a flat washer (6), and wherein thespring force (4) is engaged inside an upper portion of a structuralplate member (1) formed therein so as to remove the spring force (4) andwhich is blocked in place by a bolt (5) which is engaged into a threadedaperture (11).

[0052] Furthermore, the plate member (2) is connected to the structuralplate member (1) and to snowplow blade length by each bolt (8) passingthrough each iron wedge (7) engaged inside each slip gap (9) and insideof each aperture (12), and wherein each bolt (8) is blocked in place bya nut (10).

[0053] Accordingly, while the preferred embodiments of the inventionhave been described above, it will be recognized and understood thatvarious modifications may be made in the invention and the appendedclaims are intended to cover all such modifications which may fallwithin the spirit and scope of the invention.

I claim:
 1. An articulated scraper blade system mounted to a snowplowblade length installed in the front of a vehicle for show scraping,which comprises a multitude of sections, each where each sectioncomprises: a plate member having spaced and aligned slip gaps formedtherein, wherein each said slip gap allows said plate member to beraised automatically when it strikes an obstacle on the road surface,and lowered automatically by a spring exerting a spring force for snowscraping.
 2. The plate member of claim 1 comprising a snow deflectorformed on its lower portion so as to avoid the accumulation of residueand ice inside the blade system;
 3. The articulated scraper blade systemof claim 1 wherein an iron pin receives said spring, with said springengaging a flat washer, and which said spring is engaged inside avertically extending upper portion of a structural plate member, formedtherein and allowing removal of said spring, which is blocked in placeby a bolt which is engaged into a threaded aperture.
 4. The articulatedscraper blade system of claim 3 wherein said plate member beingconnected to said structural plate member and said snowplow blade lengthby means of additional bolts passing through each iron wedge engagedinside each said slip gap and inside of additional apertures in saidstructural plate member, and wherein each said additional bolt isblocked in place by a nut.